217342160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{388111}}^1$

素因数の和:388131

約数の個数: 40

約数和(自身を含む): 577510656

約数和(自身を除く): 360168496

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 388111, 776222, 1552444, 1940555, 2716777, 3104888, 3881110, 5433554, 6209776, 7762220, 10867108, 13583885, 15524440, 21734216, 27167770, 31048880, 43468432, 54335540, 108671080, 217342160]

約数ペア:

[(1, 217342160), (2, 108671080), (4, 54335540), (5, 43468432), (7, 31048880), (8, 27167770), (10, 21734216), (14, 15524440), (16, 13583885), (20, 10867108), (28, 7762220), (35, 6209776), (40, 5433554), (56, 3881110), (70, 3104888), (80, 2716777), (112, 1940555), (140, 1552444), (280, 776222), (560, 388111)]